Lewis and Clark

"When Thomas Jefferson negotiated the Louisiana Purchase in 1803, he needed a team to survey that vast, unknown expanse of land. He chose Meriwether Lewis and William Clark. Together, they led the Corps of Discovery, a team of ... explorers across a wild, dangerous country. Readers will understand the impact Lewis and Clark's expedition had on American history ... [and] follow their journey across roaring rivers, vast plains, and untrod paths ... [Also describes] the Native Americans they met, the fierce wildlife that threatened their lives, and the hunger, sickness, and injury that dogged them from start to finish"--Provided by publisher.